Mac cannot boot

Hi, I'm currently using the latest mac with snow leopard OS. I initially used bootcamp to install windows xp. However, with the upcoming windows 7, I wanted to remove xp and reinstall with windows 7 instead.

However, I couldn't manage to boot the computer from the windows 7 dvd. As such, I used the Mac OS's bootcamp assistant the remove the former partition for windows xp. Then, I re-setup the partition again for windows and restarted the mac so as to install windows 7.

However, after the chiming sound, and after the white page, the page came into a blank (black/white) page with a flashing "-" dash sign at the top left hand corner of the page. It stayed there for a long time.

I then restarted the computer and the same thing happened. I tried using my wireless keyboard to press the option button to load in mac os but nothing happened.

Will really appreciate any help as I can't load anything to solve the problem at all...

Oh, and I can;t load any disc in as there's another disc inside and I couldn't eject it...

I haven't dealt with this myself, but found a bit through a google search (mac bootcamp +flashing +dash) such as this one. You can also try searching via MRoolge (see sig) to find others with this problem.

MacRumors attracts a broad audience
of both consumers and professionals interested in
the latest technologies and products. We also boast an active community focused on
purchasing decisions and technical aspects of the iPhone, iPod, iPad, and Mac platforms.